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Wind and Structures
  Volume 4, Number 1, February 2001 , pages 73-84
DOI: https://doi.org/10.12989/was.2001.4.1.073
 


Characteristics of wind loads on roof cladding and fixings
J.D. Ginger(Australia)

 
Abstract
    Analysis of pressures measured on the roof of the full-scale Texas Tech building and a 1/50rnscale model of a typical house showed that the pressure fluctuations on cladding fastener and cladding-trussrnconnection tributary areas have similar characteristics. The probability density functions of pressurernfluctuations on these areas are negatively skewed from Gaussian, with pressure peak factors less than -5.5. Thernfluctuating pressure energy is mostly contained at full-scale frequencies of up to about 0.6 Hz. Pressurerncoefficients, Cp and local pressure factors, Kl given in the Australian wind load standard AS1170.2 arerngenerally satisfactory, except for some small cladding fastener tributary areas near the edges.
 
Key Words
    wind load; cladding; cladding fastener; batten-truss connection; external pressure; internal pressure; net pressure; pressure coefficient; probability density function; Gaussian distribution; pressure spectrum.
 
Address
J. D. Ginger, Cyclone Structural Testing Station (CSTS), School of Engineering, James Cook University, Townsville, QLD 4811, Australia
 

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